Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-11-03

IELTS Writing Task 1 question

 

The diagram below shows how a biofuel called ethanol is produced.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Student answer (Band 6.0)

The diagram illustrate the steps and process involve in production of a biofuel (Ethanol).

Overall, energy ,sunlight and carbon dioxide undergoes multiple process and stages and converted into ethanol which afterward consumed by multiple vehicles and they release carbon dioxide into environment as a by product which later on reused.

In the first stage, of making ethonal is plants and tree grow by using energy ,sunlight and carbon dioxide that harvest later on and undergoes pre processing which converted plants and trees into cellulose which then undergoes processing after procesing we get a product called sugars afterward microbes added and makes the final product which is ethanol and ethonol is used in multiple vehicle for instance car, truck and aeroplane and they release carbon dioxide in to the environment as a waste material which is again use in multiple kind of process and this it a never ending cycle of nature

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

You cover the main stages and identify the diagram’s overall cyclical feature: plants grow using sunlight and carbon dioxide, the material is processed into ethanol, and carbon dioxide from transport returns to the plants. The sequence from harvesting through pre-processing, cellulose, processing, sugars and the addition of microbes is also reported, and the three transport modes are named. This gives the account good coverage, with the overview showing some awareness of the process as a whole. However, some details are compressed or unclear: for example, “energy, sunlight and carbon dioxide” treats energy and sunlight as separate inputs, although the label combines sunlight with energy, and the carbon-dioxide return stage is described only generally. More precise reporting of the inputs and the cycle would strengthen the response further.

Coherence and Cohesion: Band 6.0

The response has a recognisable overall structure: an introduction, an overview, and a description of the stages in sequence. Phrases such as “In the first stage” and “afterward” help the reader follow the process, and the final reference to a “never ending cycle” links back to the overview. However, most of the detailed account is packed into one very long sentence, with several stages joined by repeated “and” and “which.” This makes relationships between steps harder to follow and causes the ending to feel crowded. Use separate sentences or paragraphs for plant growth and processing, then ethanol use and carbon-dioxide return. More precise linking and clearer punctuation would make the progression smoother and less mechanical.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “harvest,” “pre processing,” “cellulose,” “microbes,” and “by product,” so the reader can identify the main stages. There is also some useful variation in referring to the output as a “final product.” However, the range is limited and several choices are imprecise or repetitive: “multiple process and stages,” “used in multiple vehicle,” and “waste material” do not describe the diagram as naturally as more specific process language would. Spelling errors such as “ethonal,” “ethonol,” and “procesing” also reduce accuracy. Aim for precise terms such as “several stages,” “vehicles,” and “released as a by-product,” and check spelling of key technical vocabulary.

Grammatical Range and Accuracy: Band 5.0

You attempt to connect stages in longer sentences and use passive forms such as “is used,” which is appropriate for describing a process. The sequence is generally understandable, but control of sentence structure and basic agreement is inconsistent. For example, “The diagram illustrate” needs a singular verb, while “energy, sunlight and carbon dioxide undergoes” has a plural subject followed by a singular verb. The long final sentence also contains several clauses joined without clear punctuation, making the structure difficult to manage. Articles and verb forms are sometimes missing or inaccurate, as in “microbes added and makes.” Build accuracy with shorter sentences first, then combine stages using controlled relative clauses and consistent passive constructions.

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